摘要
特殊的地理位置,复杂的地质构造,丰富的松散固体物质,陡峭的地形加上降水集中的气候,为泥石流的发生创造了客观条件。西藏浪卡子至洛扎公路沿线发育泥石流42条,影响线路总长3 611 m,为山坡、粘性、稀性或过渡型泥石流,其危害主要是淤埋公路。结合当地的环境和公路的等级,主要采用过水路面、涵洞等疏排措施进行治理。
Especial geography location, perplexing geology structure, abundant incompact materials, steep landform and centralized precipitation are the necessary conditions for debris flow occurring. The debris flow along the Langkazi-Luoza road in Tibet is hillside, mud and stone, transition or watery debris flow. There are 42 strips of debris flowing along the Langkazi-Luoza road in Tibet, which threaten the road length 3,611m seriously. The main harm of the debris flow is blocking and burying roads. According to the circumstance and the grade of the road, the methods to deal with them are setting water-crossing road surface and （or） culverts along the Langkazi-Luoza road.
出处
《地质灾害与环境保护》
2006年第3期48-52,共5页
Journal of Geological Hazards and Environment Preservation
关键词
泥石流
成因
特性
防治
debris flow
control method
Tibet
